Add vanilla X-Sys sources

1 files changed, 149 insertions, 0 deletions

diff --git a/plugins/sysinfo/pci.c b/plugins/sysinfo/pci.c
new file mode 100644
index 00000000..21f23c3e
--- /dev/null
+++ b/plugins/sysinfo/pci.c
@@ -0,0 +1,149 @@
+/*
+ * pci.c - PCI functions for X-Sys
+ * Copyright (C) 1997-1999 Martin Mares <mj@atrey.karlin.mff.cuni.cz> [PCI routines from lspci]
+ * Copyright (C) 2000 Tom Rini <trini@kernel.crashing.org> [XorgAutoConfig pci.c, based on lspci]
+ * Copyright (C) 2005, 2006 Tony Vroon
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <pci/pci.h>
+#include "xsys.h"
+
+static struct pci_filter filter;       /* Device filter */
+static struct pci_access *pacc;
+int bus, dev, func; /* Location of the card */
+
+struct device {
+  	struct device *next;
+  	struct pci_dev *dev;
+  	unsigned int config_cnt;
+  	u8 config[256];
+};
+
+static struct device *first_dev;
+
+static struct device *scan_device(struct pci_dev *p)
+{
+  	int how_much = 64;
+  	struct device *d;
+
+  	if (!pci_filter_match(&filter, p))
+    		return NULL;
+  	d = malloc(sizeof(struct device));
+  	bzero(d, sizeof(*d));
+  	d->dev = p;
+  	if (!pci_read_block(p, 0, d->config, how_much))
+    		exit(1);
+  	if (how_much < 128 && (d->config[PCI_HEADER_TYPE] & 0x7f) == PCI_HEADER_TYPE_CARDBUS) {
+      		/* For cardbus bridges, we need to fetch 64 bytes more to get the full standard header... */
+      		if (!pci_read_block(p, 64, d->config+64, 64))
+        		exit(1);
+      		how_much = 128;
+    	}
+  	d->config_cnt = how_much;
+  	pci_setup_cache(p, d->config, d->config_cnt);
+  	pci_fill_info(p, PCI_FILL_IDENT);
+  	return d;
+}
+
+static void scan_devices(void)
+{
+  	struct device *d;
+  	struct pci_dev *p;
+
+  	pci_scan_bus(pacc);
+  	for(p=pacc->devices; p; p=p->next)
+    	if ((d = scan_device(p))) {
+        	d->next = first_dev;
+        	first_dev = d;
+      	}
+}
+
+static u16 get_conf_word(struct device *d, unsigned int pos)
+{
+  	return d->config[pos] | (d->config[pos+1] << 8);
+}
+
+int pci_find_by_class(u16 *class, char *vendor, char *device)
+{
+	struct device *d;
+	struct pci_dev *p;
+	int nomatch = 1;
+
+	pacc = pci_alloc();
+	pci_filter_init(pacc, &filter);
+	pci_init(pacc);
+	scan_devices();
+
+	for(d=first_dev; d; d=d->next) {
+    		p = d->dev;
+    		/* Acquire vendor & device ID if the class matches */
+    		if(get_conf_word(d, PCI_CLASS_DEVICE) == *class) {
+      			nomatch = 0;
+			snprintf(vendor,7,"%04x",p->vendor_id);
+			snprintf(device,7,"%04x",p->device_id);
+      			break;
+    		}
+  	}
+
+  	pci_cleanup(pacc);
+  	return nomatch;
+}
+
+void pci_find_fullname(char *fullname, char *vendor, char *device)
+{
+	char buffer[bsize], vendorname[bsize/2] = "", devicename[bsize/2] = "", *position;
+	int cardfound = 0;
+	FILE *fp = fopen(PCIIDS, "r");
+	if(fp == NULL) {
+		snprintf(fullname, bsize, "%s:%s", vendor, device);	
+		return;
+	}
+
+	while(fgets(buffer, bsize, fp) != NULL)	{
+		if (!isspace(buffer[0]) && strstr(buffer, vendor) != NULL) {
+                       	position = strstr(buffer, vendor);
+                       	position += 6;
+                       	strncpy(vendorname, position, bsize/2);
+                       	position = strstr(vendorname, "\n");
+                       	*(position) = '\0';
+			break;
+                }
+	}
+	while(fgets(buffer, bsize, fp) != NULL) {
+		if(strstr(buffer, device) != NULL) {
+                        position = strstr(buffer, device);
+                        position += 6;
+                        strncpy(devicename, position, bsize/2);
+			position = strstr(devicename, " (");
+			if (position == NULL)
+                        	position = strstr(devicename, "\n");
+                        *(position) = '\0';
+			cardfound = 1;
+			break;
+ 		}
+	}
+	if (cardfound == 1)
+		snprintf(fullname, bsize, "%s %s", vendorname, devicename);
+	else
+		snprintf(fullname, bsize, "%s:%s", vendor, device);	
+	fclose(fp);
+}